helen has to buy all the butter she needs to make 60 biscuits she buys the butter in 250 g packs what is the exact amount of butter she needs to buy

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work